I saw this on Friday and I'm sorry but this movie was mediocre at best... I know its a summer action movie so you're expected to throw logic and reason out the door but seriously... I came in expecting a very thin plot and some decent action and that's pretty much what I got.
The major problem I've had with the terminator series since the begining is this; if they designed and built the terminators to be super efficient killing machines then why do they always opt to gingerly throw the target against the wall rather then rip their fucking heads off!!! I'm sorry, but anyone that gets into melee range with a super strong/tough/agile highly trained combatant is going to lose, especially since these machines wouldn't be programmed to "toy" with their pray. But I digress...
I blame Christian Bale for "encouraging" a major rewrite. IIRC, it was posted here in BG that John Connor's role was originally to be much smaller in the movie but Bale insisted that his character be front and center stage. Honestly, I think the fame he's recieved from The Dark Knight has gone to his head and he somehow thinks he's the Jesus of theatrical reboots.
XI Wiki



